For information on ahp see thomas l saaty the

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Unformatted text preview: tified performance or technical attributes that
are considered constraints. Practical application again
requires that all of the alternatives be put on an equal
basis with respect to the performance or technical
attributes. This may not be practical for trade The Analytic Hierarchy Process
AHP is a decision technique in which a figure of merit
is determined for each of several alternatives through
a series of pair-wise comparisons. AHP is normally
done in six steps:
(1)
(2) (3) (4) (5) (6) Describe in summary form the alternatives
under consideration.
Develop a set of high-level evaluation
objectives; for example, science data return,
national prestige, technology advancement, etc.
Decompose each hi-level evaluation objective
into a hierarchy of evaluation attributes that
clarify the meaning of the objective.
Determine, generally by conducting structured
interviews with selected individuals (“experts”)
or by having them fill out structured
questionnaires, the relative importance of the
evaluation objectives and attributes through
pair-wise comparisons.
Have each evaluator make separate pair-wise
comparisons of the alternatives with respect to
each evaluation attribute. These subjective
evaluations are the raw data inputs to a
separately developed AHP program , which
produces a single figure of merit for each
alternative. This figure of merit is based on
relative weight determined by the evaluators
themselves.
Iterate the questionnaire and AHP evaluation
process until a consensus ranking of the
alternative is achieved With AHP, sometimes consensus is achieved
quickly; other times, several feedback rounds are required. The, feed back consists of reporting the computed values (for each evaluator and for the group) for
each option, reasons for differences in evaluation, and
identified areas of contention and/or inconsistency.
Individual evaluators may choose to change their
subjective judgments on both attribute weights and
preferences. At this point, inconsistent and divergent
preferences can be targeted for...
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